Biology and Chemistry should get you into pretty much all Neuroscience courses. Some universities will like Mathematics as well but it’s normally not required. When it comes to physics, in my opinion you shouldn’t do it unless you need it. The exams are very hard, a lot of the topics are just long and tedious, and if you’re not doing maths it will be a bit harder. The maths itself is not tricky, the hardest thing you’ll come across is probably logarithms but a lot of questions will be maths based especially in the mechanics topic. I would stick with what you’re doing and wouldn’t worry about it, they will teach you the physics you need on the course itself.